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 * @Date: 2021-08-16 15:22:14
 * @LastEditTime: 2021-08-16 15:31:19
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 * @Description: In User Settings Edit
 * @FilePath: \briup\3-html&css\day11\09-newbalance.html
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<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width==device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        button {
            display: none;
        }
        
        ul>li {
            display: inline-block;
        }
        
        @media screen and (max-width:768px) {
            body>button:first-child {
                display: block;
            }
        }
    </style>
</head>

<body>
    <button>三</button>
    <button>×</button>
    <ul>
        <li>男子</li>
        <li>女子</li>
        <li>男孩</li>
        <li>女孩</li>
    </ul>
</body>

</html>